renetriple
Full member
- Location
- near Rotterdam, Holland
Hi friends, this summer (better call it autumn ;-) the indicators on my SFC1000 sometimes stay permanent on or flash very slow. Not a very safe situation and also the horn didn't function. So I want to share my solution to the problem. Thus if you have similar problems, after this reading you know how to cure it 
Always the most important thing is to take a look at the earth connections, especially at the switchgear on the left handlebar. There I saw something strange; there is no good earth path from the two switchgear-halves to the frame. The current in this situation must flow from the clip-ons to the front suspension through the headstock bearings and back to the frame. The problem is that the metal of the switchgear makes almost no contact because the paint isolate them from the metal of the clip-ons.
When I opened the two switchgear halves I saw there was a black/white earth wire connected at the metal of one of the switchgear halves. So this seems a good design from our clever Japanese friends but read further.
Because I want to combine this job with the change of the old Motoplat coils with three TEK MP06's I waited when I bought four good ones from a VFR800 on eBay. Last week I started the job and take the fuel tank off to check where the black/white wire goes to on the frame. Near the coils there is a white connector where in the centre the wire is connected in the middle (first picture), but when I separated the two connector halves I saw that the other part of the connector has no wire in the middle where the earth wire should be (second picture)...
The solution I did is to separate the black/white wire coming from the switchgear from the existing connector so now you have a single earth wire. You can see it at the left in the third picture, also you see at the right the missing connector in the middle. After that I made a wire on it and connect it at the frame near the coils and voila; the flashers and the horn functions properly.
The reason the flashers functions sometimes a bit and the horn totaly not is very easy; the horn draws far more current then the flashers so there is more voltage drop over the (poor) headstock bearing. Needles to say that the whole situation is very bad for the bearing itself and of course detoriates the grease badly.
I can remember a thread where someone describes an earth strap from the front fork on a RGS to the frame so maybe when "Luigi" deleted it he forget to mount a proper earth wire on the switch gear. ???
So mission completed and maybe this information is helpfull for everybody who has the same strange behaviour from the flashers and the horn. Also I'm sure this is not restricted to the SFC1000 types but also other Breganze bikes.
In another story I describe the changeover from the Motoplats, grtz and happy motoring
Ren?
Always the most important thing is to take a look at the earth connections, especially at the switchgear on the left handlebar. There I saw something strange; there is no good earth path from the two switchgear-halves to the frame. The current in this situation must flow from the clip-ons to the front suspension through the headstock bearings and back to the frame. The problem is that the metal of the switchgear makes almost no contact because the paint isolate them from the metal of the clip-ons.
When I opened the two switchgear halves I saw there was a black/white earth wire connected at the metal of one of the switchgear halves. So this seems a good design from our clever Japanese friends but read further.
Because I want to combine this job with the change of the old Motoplat coils with three TEK MP06's I waited when I bought four good ones from a VFR800 on eBay. Last week I started the job and take the fuel tank off to check where the black/white wire goes to on the frame. Near the coils there is a white connector where in the centre the wire is connected in the middle (first picture), but when I separated the two connector halves I saw that the other part of the connector has no wire in the middle where the earth wire should be (second picture)...
The solution I did is to separate the black/white wire coming from the switchgear from the existing connector so now you have a single earth wire. You can see it at the left in the third picture, also you see at the right the missing connector in the middle. After that I made a wire on it and connect it at the frame near the coils and voila; the flashers and the horn functions properly.
The reason the flashers functions sometimes a bit and the horn totaly not is very easy; the horn draws far more current then the flashers so there is more voltage drop over the (poor) headstock bearing. Needles to say that the whole situation is very bad for the bearing itself and of course detoriates the grease badly.
I can remember a thread where someone describes an earth strap from the front fork on a RGS to the frame so maybe when "Luigi" deleted it he forget to mount a proper earth wire on the switch gear. ???
So mission completed and maybe this information is helpfull for everybody who has the same strange behaviour from the flashers and the horn. Also I'm sure this is not restricted to the SFC1000 types but also other Breganze bikes.
In another story I describe the changeover from the Motoplats, grtz and happy motoring
Ren?
